share-dir/bash-completion-share-dir-nfsacl.sh at main · CESNET/share-dir · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
# Bash completion for share-dir-nfsfacl
#
# Save as (example):
#   /etc/bash_completion.d/share-dir-nfsfacl
# or (user):
#   ~/.local/share/bash-completion/completions/share-dir-nfsfacl
#
# NOTE:
# - The script binary is expected to be named: share-dir-nfsfacl
# - This completion file name can stay "share-dir-nfsfacl-v3" if you want, but the
#   completion function targets the final command name (no -v3 suffix).

_share_dir_nfsfacl()
{
  local cur prev words cword
  _init_completion -s || return

  local cmd="${words[0]}"
  local action=""

  # Find first non-option word after the command -> action
  local i
  for ((i=1; i < ${#words[@]}; i++)); do
    case "${words[i]}" in
      -*) ;;  # skip global options
      *) action="${words[i]}"; break ;;
    esac
  done

  # Global options
  local global_opts="-h --help -n --dry-run -v --verbose"
  local actions="read readwrite undo show list"

  # If no action yet, complete actions and global opts
  if [[ -z "$action" ]]; then
    COMPREPLY=( $(compgen -W "${actions} ${global_opts}" -- "$cur") )
    return
  fi

  # Per-action options
  local common_path_opts="-h --help"
  local rw_opts="-r --recurse"
  local undo_opts="-r --recurse -p --parent"

  case "$action" in
    read|readwrite)
      # Options
      if [[ "$cur" == -* ]]; then
        COMPREPLY=( $(compgen -W "${rw_opts} ${global_opts} ${common_path_opts}" -- "$cur") )
        return
      fi

      # Positional completion: PATH then SUBJECT
      # Determine how many positionals already present after action
      local pos=()
      for ((i=1; i < ${#words[@]}; i++)); do
        # ignore options
        [[ "${words[i]}" == -* ]] && continue
        # ignore command and action
        [[ "${words[i]}" == "$cmd" || "${words[i]}" == "$action" ]] && continue
        pos+=("${words[i]}")
      done

      if (( ${#pos[@]} == 0 )); then
        _filedir -d
        return
      fi

      if (( ${#pos[@]} == 1 )); then
        # Suggest users and groups. Groups are suggested with @ prefix.
        # Users from /etc/passwd
        local users groups
        users=$(cut -d: -f1 /etc/passwd 2>/dev/null)
        groups=$(cut -d: -f1 /etc/group 2>/dev/null | sed 's/^/@/')
        COMPREPLY=( $(compgen -W "${users} ${groups}" -- "$cur") )
        return
      fi

      return
      ;;

    undo)
      if [[ "$cur" == -* ]]; then
        COMPREPLY=( $(compgen -W "${undo_opts} ${global_opts} ${common_path_opts}" -- "$cur") )
        return
      fi

      local pos=()
      for ((i=1; i < ${#words[@]}; i++)); do
        [[ "${words[i]}" == -* ]] && continue
        [[ "${words[i]}" == "$cmd" || "${words[i]}" == "$action" ]] && continue
        pos+=("${words[i]}")
      done

      if (( ${#pos[@]} == 0 )); then
        _filedir -d
        return
      fi

      if (( ${#pos[@]} == 1 )); then
        local users groups
        users=$(cut -d: -f1 /etc/passwd 2>/dev/null)
        groups=$(cut -d: -f1 /etc/group 2>/dev/null | sed 's/^/@/')
        COMPREPLY=( $(compgen -W "${users} ${groups}" -- "$cur") )
        return
      fi

      return
      ;;

    show)
      if [[ "$cur" == -* ]]; then
        COMPREPLY=( $(compgen -W "${rw_opts} ${global_opts} ${common_path_opts} --raw" -- "$cur") )
        return
      fi
      _filedir -d
      return
      ;;

    list)
      if [[ "$cur" == -* ]]; then
        COMPREPLY=( $(compgen -W "${global_opts} ${common_path_opts}" -- "$cur") )
      fi
      return
      ;;

    *)
      # Unknown action; fall back to actions
      COMPREPLY=( $(compgen -W "${actions}" -- "$cur") )
      return
      ;;
  esac
}

# Register completion for the final command name (no -v3 suffix)
complete -F _share_dir_nfsfacl share-dir-nfsfacl